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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 52, Iss. 4 — Feb. 1, 2013
  • pp: 690–697

Effect of surrounding inhomogeneities on whispering gallery modes in spherical resonators

Sina Amini, Yu You, George W. Kattawar, and Kenith E. Meissner  »View Author Affiliations


Applied Optics, Vol. 52, Issue 4, pp. 690-697 (2013)
http://dx.doi.org/10.1364/AO.52.000690


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Abstract

The Amsterdam discrete dipole approximation (ADDA) is used to study the effects of an inhomogeneous refractive index in the surrounding medium of a microspherical resonator on the quality and position of the whispering gallery modes (WGMs). The model consists of a polystyrene microsphere with a refractive index, n, of 1.587 surrounded by water (n=1.333) and an inhomogeneity (n=1.5) on top of the microsphere. The effect of the area of the inhomogeneity on the WGMs is modeled using the ADDA code and compared with Lorenz–Mie code. WGMs of various quantum dot embedded microspheres mounted on atomic force microscope cantilevers are experimentally measured and shown to be consistent with the model.

© 2013 Optical Society of America

OCIS Codes
(110.0180) Imaging systems : Microscopy
(120.4820) Instrumentation, measurement, and metrology : Optical systems
(230.5750) Optical devices : Resonators
(290.4020) Scattering : Mie theory
(290.5820) Scattering : Scattering measurements
(290.5825) Scattering : Scattering theory

ToC Category:
Optical Devices

History
Original Manuscript: October 26, 2012
Revised Manuscript: December 14, 2012
Manuscript Accepted: December 17, 2012
Published: January 30, 2013

Citation
Sina Amini, Yu You, George W. Kattawar, and Kenith E. Meissner, "Effect of surrounding inhomogeneities on whispering gallery modes in spherical resonators," Appl. Opt. 52, 690-697 (2013)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-52-4-690

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